include<tools/util.scad>
$fn=100;
difference(){
    linear_extrude(17.8)
    polygon([[7.1,0],[5,14.4],[-5,14.4],[-7.1,0]]);
    translate([0,13.5,8])cube([14.4,2,16.3],center=true);
    translate([0,13,6.5])rotate([90,90,0])d_six_side_cube(edge=5.6,height=6.5);
    translate([0,-7,0])cylinder(h=18,d=20);
}